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Inermodulation distortion of D10 can be described as "definitely not hearable". Any better IMD than that (like with DX7s or RME-ADI) can be described as "ultra not hearable".

So no, you won't be able to tell the difference between D10 and DX7s (or any other DAC with better IMD and/or SINAD), not only from the perspective of IMD but from any other perspective as well. They will simply sound the same. Neutral.

you know, I've very similar measurement of my new project aka "USB dongle DAC", in my case THD+N looks like your DX3 if I do not use THD_Comp tweak, otherwise it looks like D10. To be honest, I much easier got <-120dbA and .0003% within [email protected] planar HP load 42ohm with AK4490, without any THD_comp tweaking. Probably, the main reason is an incredible low out_of_band noise of AK4490, in fact, there is nothing to filter at all. After 9038q2m I see a lot of wideband noise + 3 tall needles 50/75/100MHz. And my output stage opamp near to clipping behaves totally differently vs AK4490 with the same opamp and load. Looks like I'll have to add one more dedicated opamp for I/V+filtering to get at least .0003% of THD+N, and it will be a challenge(PCB 20x47mm).
PS: only S/N with ES9038Q2M is impressive, I didn't check it with AP yet, however, my calculations based on -118.5dbA ADC+trafo+20db gain by OPA1612, shows me at least -126dbA. S/N is really cool but not THD at all. I suspect cheap clock maks THD higher than specs, and will test next few days ES9038Q2M with SiTime mems

Member

Krunok, did you see a measurement for "bass is low, powerful, but transparent " ever? Actually, such mod has only fast push response and very slow pull-down because it is passive discharge, hence, AVCC rail is badly regulated. A technically that's bad, regarding "bass is low, powerful, but transparent" who knows.

Member

What I noticed about the 4.47 driver was that it brought down the bass impact a lot on my HD6XX or It felt like it did, the mids get pushed a touch brighter on 4.47, to my ears. So it's been eating at me for a few days to go back and try the 4,14 driver.... and yeah, a fuller sound, or maybe I just like the sound of the 4.14 better?